Related Experiment Video
Updated: May 15, 2026

11:19
Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses
Published on: October 21, 2016
Fixing carbon credits requires a new financing model
Benedict S Probst1,2,3, Florian Egli4,5
1Net Zero Lab, Max Planck Institute for Innovation and Competition, 80333 Munich, Germany.
PNAS Nexus
|May 14, 2026
Summary
Scaling permanent carbon removal is vital for net zero goals. A new financing model, including tiered auctions, is proposed to overcome market barriers and attract investment for carbon dioxide removal (CDR) technologies.
Area of Science:
- Environmental science
- Climate change economics
- Carbon markets
Background:
- Carbon-crediting mechanisms are crucial for net zero targets.
- Many current offset projects lack environmental integrity.
- Scaling carbon dioxide removal (CDR) is essential for geological net zero.
Purpose of the Study:
- To address market barriers hindering the scale-up of permanent carbon removal.
- To propose a novel financing model for novel CDR technologies.
- To improve the environmental integrity and investment attractiveness of carbon credits.
Main Methods:
- Analysis of current carbon-crediting mechanisms and their limitations.
- Development of a tiered auction framework proposal.
- Integration of first-of-a-kind finance mechanisms.
Main Results:
- Current focus on implementation challenges is insufficient for scaling CDR.
- A new financing model is required to reduce price volatility and increase credit prices.
- The proposed tiered auction framework can build and scale markets for novel CDR.
Conclusions:
- Scaling permanent carbon removal necessitates innovative financing models beyond implementation improvements.
- Tiered auctions with quality standards and novel finance can effectively scale CDR technologies.
- Addressing market barriers is key to leveraging CDR for climate goals.
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